tffs.rar_tffs

/* * $Log: P:/user/amir/lite/vcs/nfdc2148.c_v $ * * Rev 1.23 25 Mar 1998 15:10:00 Andray, Hdei * Added two parameters, startAddr and endAddr, to windowBaseAddr(). * * Rev 1.23 23 Sep 1997 18:52:16 danig * Initialize junk * * Rev 1.22 18 Sep 1997 10:12:08 danig * Warnings * * Rev 1.21 10 Sep 1997 16:14:30 danig * Got rid of generic names * * Rev 1.20 08 Sep 1997 18:10:48 danig * Fixed setAddress for big-endian * * Rev 1.19 04 Sep 1997 19:30:40 danig * Debug messages * * Rev 1.18 04 Sep 1997 14:30:58 DIMITRY * Add Reset in 'windowBase' function + * Set 0-floor after floor identification * * Rev 1.17 04 Sep 1997 10:04:02 DIMITRY * ECC/EDC in hardware * * Rev 1.16 31 Aug 1997 15:02:34 danig * Registration routine return status * * Rev 1.15 28 Aug 1997 16:56:50 danig * Buffer and remapped per drive * * Rev 1.14 31 Jul 1997 14:23:22 danig * Changed junk and zeroes to be local variables * * Rev 1.13 28 Jul 1997 15:33:54 danig * Moved standard typedefs to flbase.h * * Rev 1.12 27 Jul 1997 14:06:14 danig * FAR -> FAR0, physicalToPointer, no fltimer.h * * Rev 1.11 24 Jul 1997 16:42:30 danig * Reset before Erase ( for Toshiba 8 Mb ) * * Rev 1.10 21 Jul 1997 18:56:22 danig * nandBuffer static * * Rev 1.9 15 Jul 1997 16:17:40 danig * Ver 2.0 * * Rev 1.8 13 Jul 1997 18:08:04 danig * Initialize totalFloors & floorSize * * Rev 1.7 30 Jun 1997 15:00:08 DIMITRY * Always init MTD with noOfUnits = 0. * * Rev 1.6 22 Jun 1997 15:18:16 danig * No header file, moved page flags to flash.h * * Rev 1.5 22 Jun 1997 14:13:04 danig * Documentation * * Rev 1.4 18 Jun 1997 16:25:22 DIMITRY * * Rev 1.3 17 Jun 1997 17:22:28 DIMITRY * Major code reorg + fast Toshiba ( AmirBan ) * * Rev 1.2 25 May 1997 19:20:24 danig * Changes in EDC & media size calculation in doc2Erase * * Rev 1.1 25 May 1997 14:47:06 danig * Changed writeOneSector for Toshiba 2M, and fixed noOfBlocks bug * * Rev 1.0 20 May 1997 13:11:50 danig * Initial revision. */ /************************************************************************/ /* */ /* FAT-FTL Lite Software Development Kit */ /* Copyright (C) M-Systems Ltd. 1995-1997 */ /* */ /************************************************************************/ #include "flflash.h" #include "reedsol.h" /*闈����������� � Feature list � ������������*/ /* #define MULTI_ERASE */ /* use multiple block erase feature */ /* #define VERIFY_ERASE */ /* read after erase and verify */ /* #define VERIFY_WRITE */ /* read back and verify write */ /* #define WIN_FROM_SS */ /* call Socket Services to get window location */ #define CHIP_ID 0x20 #define BUSY_DELAY 30000 #define EXTRA_LEN 8 /* size of extra area */ #define SYNDROM_BYTES 6 /* Number of syndrom bytes: 5 + 1 parity */ #define PAGES_PER_BLOCK 16 /* 16 pages per block on a single chip */ /* miscellaneous limits */ #define MAX_FLASH_DEVICES 16 #define MAX_FLOORS 4 /* Flash IDs*/ #define KM29N16000_FLASH 0xec64 #define KM29N32000_FLASH 0xece5 #define KM29V64000_FLASH 0xece6 #define KM29V128000_FLASH 0xec73 #define NM29N16_FLASH 0x8f64 #define NM29N32_FLASH 0x8fe5 #define NM29N64_FLASH 0x8fe6 #define TC5816_FLASH 0x9864 #define TC5832_FLASH 0x98e5 #define TC5864_FLASH 0x98e6 /* Flash commands */ #define SERIAL_DATA_INPUT 0x80 #define READ_MODE 0x00 #define READ_MODE_2 0x50 #define RESET_FLASH 0xff #define SETUP_WRITE 0x10 #define SETUP_ERASE 0x60 #define CONFIRM_ERASE 0xd0 #define READ_STATUS 0x70 #define READ_ID 0x90 #define SUSPEND_ERASE 0xb0 #define REGISTER_READ 0xe0 /* commands for moving flash pointer to areeas A,B or C of page */ typedef enum { AREA_A = READ_MODE, AREA_B = 0x1, AREA_C = READ_MODE_2 } PointerOp; #define FAIL 0x01 /* error in block erase */ /*闈�����������������鱷 � Definition for writing boot image � �������������������*/ #define SPL_SIZE 0x2000 /* 8 KBytes */ #define MAX_CODE_MODULES 6 /* max number of code modules in boot area (incl. SPL) */ /*闈�������������������� � Definition of DOC 2000 memory window � ���������������������*/ /* DOC 2000 memory window layout : 0000 .... 003F IPL ROM ( part 1 ) 0040 .... 07FF (aliased 20H times) 0800 .... 083F IPL ROM ( part 2 ) 0840 .... 0FFF (aliased 20H times) 1000 Chip Id 1001 DOC_Status_reg 1002 DOC_Control_reg 1003 ASIC_Control_reg CDSN window -----> 1004 CDSN_Control_reg 1005 CDSN_Device_Selector 1006 ECC_Config_reg 1007 ECC_Status_reg 1008 .... 100C Test registers [5] 100D CDSN_Slow_IO_reg 100E .... 100F reserved ( 2 bytes ) 1010 .... 1015 ECC_Syndrom [6] 1016 .... 17FF reserved ( 2027 bytes ) 1800 .... 1FFF CDSN_IO (aliased 800H times) */ typedef struct /* represents DOC 2000 memory window */ { unsigned char IPLpart1[0x800] ; /* read not used here */ unsigned char IPLpart2[0x800] ; /* read not used here */ volatile unsigned char chipId ; /* read */ volatile unsigned char DOCstatus ; /* read */ volatile unsigned char DOCcontrol ; /* write */ volatile unsigned char ASICselect ; /* read write */ volatile unsigned char signals ; /* read write */ volatile unsigned char deviceSelector ; /* read write */ volatile unsigned char ECCconfig ; /* write */ volatile unsigned char ECCstatus ; /* read */ volatile unsigned char test[5] ; /* not used here */ volatile unsigned char slowIO ; /* read write */ unsigned char filler1[2] ; /* -- -- */ volatile unsigned char syndrom[6] ; /* read */ unsigned char filler2[0x800 - 0x16] ; /* -- -- */ volatile unsigned char io[0x800] ; /* read write */ } DOC2window; /* bits for writing to DOC2window.DOCcontrol reg */ #define ASIC_NORMAL_MODE 0x85 #define ASIC_RESET_MODE 0 /* bits for writing to DOC2window.signals ( CDSN_Control reg ) */ #define CE 0x01 /* 1 - Chip Enable */ #define CLE 0x02 /* 1 - Command Latch Enable */ #define ALE 0x04 /* 1 - Address Latch Enable */ #define WP 0x08 /* 1 - Write-Protect flash */ #define FLASH_IO 0x10 #define ECC_IO 0x20 /* 1 - turn ECC on */ #define PWDO 0x40 /* bits for reading from DOC2window.signals ( CDSN_Control reg ) */ #define RB 0x80 /* 1 - ready */ /* bits for writing to DOC2window.ECCconfig */ #define ECC_RESERVED 0x02 /* reserved bits */ #define ECC_EN (0x08 | ECC_RESERVED) /* 1 - enable ECC */ #define ECC_RW (0x20 | ECC_RESERVED) /* 1 - write mode, 0 - read mode */ /* bits for reading from DOC2window.ECCstatus */ #define ECC_ERROR 0x80 #define TOGGLE 0x04 /* used for DOC 2000 detection */ #define SLOW_IO 0x04 /* requires access to